XMF 1.3.4 RC1

https://github.com/XOOPS/xmf/releases

Release candidate for the PHP 8.2+ line (^8.2, tested on 8.2–8.5). It contains everything in 1.3.4 Beta 1 plus a second round of hardening in Serializer, Highlighter, FilterInput, Metagen and SendmailRunner. There are no new features, no new dependencies and no changed method signatures. A few methods now reject input they used to accept, so check Upgrade notes before you deploy.

If no regressions are reported, this code becomes 1.3.4, the version planned for XOOPS 2.7.5. Please test it against your modules and report problems at https://github.com/XOOPS/xmf/issues.